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| author | Warner Losh | 2022-02-01 00:01:05 +0100 |
|---|---|---|
| committer | Warner Losh | 2022-02-27 05:05:21 +0100 |
| commit | 647afdf1836548146b77c6ca68e93c7acfe35738 (patch) | |
| tree | cd88758e670d117ab51c152020d8479da5ff97fd /bsd-user | |
| parent | bsd-user/bsd-file.h: Implementation details for the filesystem calls (diff) | |
| download | qemu-647afdf1836548146b77c6ca68e93c7acfe35738.tar.gz qemu-647afdf1836548146b77c6ca68e93c7acfe35738.tar.xz qemu-647afdf1836548146b77c6ca68e93c7acfe35738.zip | |
bsd-user: introduce target.h
Create target.h. This file is intended to be simple and describe basic
things about the architecture. If something is a basic feature of the
architecture, it belongs here. Should we need something that's per-BSD
there will be a target-os.h that will live in the per-bsd directories.
Define regpairs_aligned to reflect whether or not registers are 'paired'
for 64-bit arguments or not. This will be false for all 64-bit targets,
and will be true on those architectures that pair (currently just armv7
and powerpc on FreeBSD 14.x).
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'bsd-user')
| -rw-r--r-- | bsd-user/arm/target.h | 21 | ||||
| -rw-r--r-- | bsd-user/i386/target.h | 21 | ||||
| -rw-r--r-- | bsd-user/qemu.h | 1 | ||||
| -rw-r--r-- | bsd-user/x86_64/target.h | 21 |
4 files changed, 64 insertions, 0 deletions
diff --git a/bsd-user/arm/target.h b/bsd-user/arm/target.h new file mode 100644 index 0000000000..419c039b68 --- /dev/null +++ b/bsd-user/arm/target.h @@ -0,0 +1,21 @@ +/* + * Intel general target stuff that's common to all i386 details + * + * Copyright (c) 2022 M. Warner Losh <imp@bsdimp.com> + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef TARGET_H +#define TARGET_H + +/* + * arm EABI 'lumps' the registers for 64-bit args. + */ +static inline bool regpairs_aligned(void *cpu_env) +{ + return true; +} + +#endif /* ! TARGET_H */ + diff --git a/bsd-user/i386/target.h b/bsd-user/i386/target.h new file mode 100644 index 0000000000..9b9df047a3 --- /dev/null +++ b/bsd-user/i386/target.h @@ -0,0 +1,21 @@ +/* + * Intel general target stuff that's common to all i386 details + * + * Copyright (c) 2022 M. Warner Losh <imp@bsdimp.com> + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef TARGET_ARCH_H +#define TARGET_ARCH_H + +/* + * i386 doesn't 'lump' the registers for 64-bit args. + */ +static inline bool regpairs_aligned(void *cpu_env) +{ + return false; +} + +#endif /* ! TARGET_ARCH_H */ + diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h index 56042ddbc5..a9efa807b7 100644 --- a/bsd-user/qemu.h +++ b/bsd-user/qemu.h @@ -35,6 +35,7 @@ extern char **environ; #include "target_syscall.h" #include "target_os_vmparam.h" #include "target_os_signal.h" +#include "target.h" #include "exec/gdbstub.h" /* diff --git a/bsd-user/x86_64/target.h b/bsd-user/x86_64/target.h new file mode 100644 index 0000000000..8956631db1 --- /dev/null +++ b/bsd-user/x86_64/target.h @@ -0,0 +1,21 @@ +/* + * Intel general target stuff that's common to all x86_64 details + * + * Copyright (c) 2022 M. Warner Losh <imp@bsdimp.com> + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef TARGET_H +#define TARGET_H + +/* + * x86 doesn't 'lump' the registers for 64-bit args, all args are 64 bits. + */ +static inline bool regpairs_aligned(void *cpu_env) +{ + return false; +} + +#endif /* ! TARGET_H */ + |